METHOD AND APPARATUS FOR DETERMINING THE UNCOVERED SIZE OF AN OPENING ADAPTED TO BE COVERED BY MULTIPLE MOVEABLE DOORS

摘要

Fume hood controller apparatus includes acomputing means, together with associated memory, which canbe configured fox horizontally and/or vertically moveablesash doors by inputting the necessary dimensions of thesash doors and other structural features, such as the upperlip height, frame widths and the like. The apparatusrapidly calculates the size of the uncovered area of thefume hood as a function of the position of the sash doors.